remove closing connections after every task, this goes against conneciton caching and was not expected behaviuor nor inhertited from v1

lib/ansible/executor/task_executor.py

@@ -128,13 +128,6 @@ class TaskExecutor:
             return result
         except AnsibleError as e:
             return dict(failed=True, msg=to_unicode(e, nonstring='simplerepr'))
-        finally:
-            try:
-                self._connection.close()
-            except AttributeError:
-                pass
-            except Exception as e:
-                debug("error closing connection: %s" % to_unicode(e))
 
     def _get_loop_items(self):
         '''